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BS ISO 23838:2022

BS ISO 23838:2022

$189.07

Metallic materials. High strain rate torsion test at room temperature

Published By Publication Date Number of Pages
BSI 2022 48
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PDF Catalog

PDF Pages PDF Title
2 undefined
6 Foreword
7 Introduction
9 1 Scope
2 Normative references
3 Terms and definitions
10 4 Symbols and designations
12 5 Principle
13 6 Apparatus
6.1 Apparatus components
14 6.2 Loading device
6.3 Bar components
15 6.4 Data acquisition and recording system
7 Test piece
7.1 Dimensions of test piece
17 7.2 Measurement of test piece dimensions
8 Procedure
8.1 Calibration of the apparatus
18 8.2 Recording the temperature of the test environment
8.3 Checking the bar alignment
8.4 Mounting test piece
19 8.5 Loading
8.6 Measuring and recording
9 Data processing
9.1 Strain on bars
9.2 Waveform processing
9.2.1 Determination of waveform baseline
9.2.2 Determination of starting points of waves
20 9.2.3 Synchronization of waves
9.2.4 Determination of loading duration of stress wave
9.3 Engineering plastic shear strain rate
9.4 Engineering plastic shear strain
9.5 Engineering plastic shear stress
9.6 Engineering plastic shear stress-shear strain curve
9.7 Average engineering plastic shear strain rate
21 9.8 Test example
10 Evaluation of test result
11 Test report
22 Annex A (informative) Torsional split Hopkinson bar
36 Annex B (informative) Data acquisition and recording system
39 Annex C (informative) Method for determining the starting points of waves
40 Annex D (informative) Example of torsional split Hopkinson bar method
44 Bibliography

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BS ISO 23838:2022
$189.07